%0 Journal Article
%T Multiwalledcarbonnanotube/TiO2nanocompositeasahighlyactivephotocatalystforphotodegradationofReactiveBlack5dye
%A Sharifah Bee Abd Hamid
%A Tong Ling Tan
%A Chin Wei Lai
%A Emy Marlina Samsudin
%J ´ß»¯Ñ§±¨
%P 2014-2019
%D 2014
%R 10.1016/S1872-2067(14)60210-2
%X £¿AnanocompositeUV-visiblelight-responsivemultiwalledcarbonnanotube(MWCNT)/titaniumdioxide(TiO2)nanophotocatalystwassuccessfullysynthesizedbyamodifiedsol-gelmethodusingtitaniumisopropoxideandfunctionalizedMWCNTsasthestartingprecursors.ThephotocatalyticactivityoftheTiO2andthenanohybridmaterialwasinvestigatedthroughthephotodegradationofReactiveBlack5dyeunderultravioletlightirradiation.X-raydiffractionanalysisindicatedthatanatasephasewasobtainedforboththepureTiO2andtheMWCNT/TiO2composite,whileRamanspectroscopyconfirmedthepresenceofMWCNTsinthecomposite.FieldemissionscanningelectronmicroscopyrevealedthatTiO2nanoparticleswithanindividualdiameterofabout10-20nmwerecoatedonthesurfaceoftheMWCNTs.Thespecificsurfaceareasofthesampleswerefoundtobe80and181m2/gforthepureTiO2andMWCNT/TiO2,respectively.Asaresult,MWCNT/TiO2showedbetterphotocatalyticperformancethanpureTiO2becausethehighsurfaceareaofMWCNTsenabledthemtofunctionasgoodelectronacceptorsfortheretardationofelectron-holepairrecombination.
%K Multiwalledcarbonnanotube
%K Titaniumdioxide
%K Photocatalyst
%K Modifiedsol-gel
%K ReactiveBlack5
%K Dye
%U http://www.chxb.cn/CN/abstract/abstract21470.shtml